In the viewport for a given blueprint class I want to visualize the center of mass of this blueprint. Searching for this online suggests that there’s a “Show” menu somewhere with some real nifty Developer type options that include a visualization for the model’s center of mass.
As far as I’ve been able to determine, this does not exist in UE 5.7.
Does anyone know how to visualize this point? I don’t need it during runtime, I just want to be able to see where it is and make adjustments to the center of mass offset based on that.
Hello @Singthesights1 ,
From what I’ve been researching, and if I understood it correctly, here’s the explanation:
If what you need is to see exactly where the Center of Mass is in order to precisely adjust the Center of Mass Offset, use Blueprint. Call the Get Center Of Mass node on the component that is simulating physics (it must have Simulate Physics enabled) and connect that value to the Center input of a Draw Debug Sphere node. This way you can change values at runtime and immediately see how the object behaves.
If you need to inspect how Chaos is calculating the mass and inertia of an object directly in the editor, enable Show - Advanced - Mass Properties in the Level Viewport. That option allows you to visualize the Center of Mass and the principal inertia axes of the rigid body.
If you’re working with systems based on Mass Entity (ECS), such as Mass AI, and you need to inspect Entities, Archetypes, Fragments, or Processors, open Tools - Debug - Mass Debugger. That tool is not for traditional physics, but for debugging the Mass framework.
If you’re working with vehicles and need to adjust stability or prevent the vehicle from rolling over, configure the Center of Mass from the Vehicle Movement Component within the Chaos Vehicles system. In that case, it’s recommended to follow the official Chaos Vehicles documentation, where they explain how to adjust the Center of Mass and other vehicle-specific physics parameters.
https://dev.epicgames.com/documentation/en-us/unreal-engine/vehicle-center-of-mass-in-unreal-engine?application_version=5.0
How to Use the Vehicle Debug System in Unreal Engine (ShowDebug Vehicle)
Hope it helps!
